UnratedFix available
net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit()
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit() When dma_map_single() fails in tse_start_xmit(), the function returns NETDEV_TX_OK without freeing the skb. Since NETDEV_TX_OK tells the stack the packet was consumed, the skb is never freed, leaking memory on every DMA mapping failure. Add dev_kfree_skb_any() before returning to properly free the skb.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.253, 5.15.203, 6.1.169, 6.12.82, 6.18.23, 6.19.13, 6.6.135
- CVEs
- CVE-2026-31658
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 16:14 UTC · Revision 1
Source evidence
net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit()
core-osv · Original sourcePublished 24 Apr 2026, 14:45 UTC
In the Linux kernel, the following vulnerability has been resolved: net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit() When dma_map_single() fails in tse_start_xmit(), the function returns NETDEV_TX_OK without freeing the skb. Since NETDEV_TX_OK tells the stack the packet was consumed, the skb is never freed, leaking memory on every DMA mapping failure. Add dev_kfree_skb_any() before returning to properly free the skb.
osv:CVE-2026-31658
Kernel
Fixed versions: 5.10.253, 5.15.203, 6.1.169, 6.6.135, 6.12.82, 6.18.23, 6.19.13
Complete source record
{
"id": "bd1951c6f4dfcc4edd1092990dcb4eb66cbb9f8618184bbe85348e332d6d5d0a",
"url": "https://osv.dev/vulnerability/CVE-2026-31658",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit()",
"summary": "In the Linux kernel, the following vulnerability has been resolved: net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit() When dma_map_single() fails in tse_start_xmit(), the function returns NETDEV_TX_OK without freeing the skb. Since NETDEV_TX_OK tells the stack the packet was consumed, the skb is never freed, leaking memory on every DMA mapping failure. Add dev_kfree_skb_any() before returning to properly free the skb.",
"evidence": "osv:CVE-2026-31658",
"products": [
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{
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"severity": "unknown",
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"aliases": [
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"events": [
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{
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"package": {
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"ecosystem": "Linux"
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"modified": "2026-10-28T02:30:37.305924507Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/html/ssa-019113.html",
"https://cert-portal.siemens.com/productcert/html/ssa-082556.html",
"https://cert-portal.siemens.com/productcert/html/ssa-457936.html",
"https://git.kernel.org/stable/c/2eb9d67704ca8f1101f7435b85f113ede471f9f2",
"https://git.kernel.org/stable/c/3aca300e88afe56afb000cdc4c65383014fb17f9",
"https://git.kernel.org/stable/c/60f462cd2716d86bd2174f9d5e035c9278f30480",
"https://git.kernel.org/stable/c/6dede3967619b5944003227a5d09fdc21ed57d10",
"https://git.kernel.org/stable/c/9f3ec44aeb58501d11834048d5d0dbaeacb6d4e7",
"https://git.kernel.org/stable/c/ae2cd46f57f422b51aedd406ff5d75cbff401d5d",
"https://git.kernel.org/stable/c/cb1d318702fdf643061350d164250198df4116f2",
"https://git.kernel.org/stable/c/d5ec406f0543bd6cdfd563b08015fdec8c4d5712",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31658.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-31658",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31658.json"
}
},
"related_cves": [
{
"value": "CVE-2026-31658",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 504552,
"published_at": "2026-04-24T14:45:09.566+00:00"
}